Dr. John M Chan, DDS
Dr. John M Chan is a Dentist provider (Dentist) practicing in Livermore, CA, registered in the NPPES registry with NPI 1407156375 since 2010. The credential DDS stands for Doctor of Dental Surgery. Practices at Gerald P Hawkins DDS Inc (listed at the same practice address in NPPES).
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1407156375 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. John M Chan |
| Credential | DDS |
| Sex | Male |
| Practice address | Livermore, CA, 94550 |
| Phone | 9254551232 |
| Fax | 9253716534 |
| Enumeration date | 2010-10-26 |
| Last updated in NPPES | 2010-11-04 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Primary | 48891 | CA |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: John Chan, DDS NPI: 1407156375 Taxonomy: 122300000X (Dentist) Address: Livermore, CA, 94550
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1912061631 | Gerald P Hawkins DDS Inc | Organization | General Practice Dentistry | Livermore, CA |
| 1689824559 | Gerald Hawkins | Individual | General Practice Dentistry | Livermore, CA |
Verify this record
Cross-check NPI 1407156375 against the authoritative CMS record: view Dr. John M Chan on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
Where does John Chan practice?
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-11-04.